Flipping between staying or going

I have been flipping between wanting to stay in my marriage and wanting to go. I am thinking it may line up with my husband’s moods. There is a long history of big problems on his side that he went to counseling for; no conclusive diagnosis as some thought he was sociopathic and others bipolar & autistic. Some weeks I might feel really convinced that he’s a terrible person who will never really change. Others he seems like there is hope but sometimes I’m not sure how genuine it is. He tends to mimic other’s emotions subconsciously so I don’t know if he might be picking some up from me. I have to decide pretty soon because we’re looking into getting a house. We’ve seen several counselors together but honestly they were no help. What should I do? How do I decide? I’m afraid of making the wrong choice.